22. Wow, I totally missed that whole story.

Authorities this year have arrested neo-Nazis who allegedly planted a bomb along the route of a Martin Luther King parade in Spokane, Wash.; arrested six members of an Alaska militia who allegedly plotted to kill state troopers; arrested a Wisconsin man for planning to kill Planned Parenthood workers; and on May 29 arrested a Florida man who claimed to be part of the burgeoning “sovereign citizen movement” after he sprayed a market with AK-47 fire.

A spokesman for DHS, Adam Fetcher, declined to say if the department agrees that the threat of domestically inspired terrorism is increasing or how many analysts are presently assigned to the issue, calling that a sensitive intelligence matter. But he said the evolving risk of group or individual violence is “reflected in our briefings and products over the past year.”

A senior department official provided by Fetcher, who spoke on condition of anonymity to discuss intelligence practices, confirmed that “the number of analysts on a daily basis has decreased somewhat, compared to what it was two years ago.” But the official disputed claims by several current and former DHS officials that only two analysts — including one who is a contract employee — now study the issue full-time.

DHS’s caution or avoidance, as its critics claim, may partly stem from worries that aggressive intelligence operations could be seen as civil liberties violations. A DHS official explained that “unlike international terrorism, there are no designated domestic terrorist groups. Subsequently, all the legal actions of an identified extremist group leading up to an act of violence are constitutionally protected and not reported on by DHS.”